lousy semicolon support, replace, escape, and ai in entities

src/main/java/carpet/script/CarpetExpression.java

@@ -50,6 +50,7 @@ import net.minecraft.item.BlockItem;
 import net.minecraft.item.ItemStack;
 import net.minecraft.item.Items;
 import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.StringTag;
 import net.minecraft.nbt.Tag;
 import net.minecraft.particle.ParticleEffect;
 import net.minecraft.predicate.entity.EntityPredicates;
@@ -2778,6 +2779,13 @@ public class CarpetExpression
             return (cc, tt) -> ret;
         });
 
+        this.expr.addLazyFunction("escape_nbt", 1, (c, t, lv) -> {
+            Value v = lv.get(0).evalValue(c);
+            String string = v.getString();
+            Value ret = new StringValue(StringTag.escape(string));
+            return (cc, tt) -> ret;
+        });
+
         //"overridden" native call that prints to stderr
         this.expr.addLazyFunction("print", 1, (c, t, lv) ->
         {